Home / 218,943.73-302,142.18-118,341.73

Finding the Fourth Proportional to 218,943.73, 302,142.18 and 118,341.73

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Solution

The fourth proportional to 218,943.73, 302,142.18 and 118,341.73 is: 163,311.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,943.73 : 302,142.18 = 118,341.73 : x
  2. Step 2: Convert to fraction form
    218,943.73/302,142.18 = 118,341.73/x
  3. Step 3: Cross multiply
    218,943.73x = 302,142.18 × 118,341.73
  4. Step 4: Simplify right side
    218,943.73x = 35,756,028,287.17
  5. Step 5: Solve for x
    x = 35,756,028,287.17/218,943.73
  6. Step 6: Final answer
    x = 163,311.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.